Expression of T7 promoter- lac operator hybrid requires

Q. Expression of T7 promoter- lac operator hybrid requires ___________

A.            T7 RNA polymerase

B.            An inducer such as IPTG

C.            Both T7 RNA polymerase and inducer such as IPTG

D.            T7 DNA polymerase

Answer: Both T7 RNA polymerase and inducer such as IPTG